- added module version (similar to SLUBArchiv release version)

- moved $sipVersion to module
- added getter get_sip_version()

lib/SLUB/LZA/SIPBuilderBagIt.pm

@@ -59,6 +59,12 @@ use Path::Tiny;
 use Term::ANSIColor;         # colored print
 use XML::LibXML;
 use XML::XPath;
+our $VERSION=2021.2;
+# version of SIP,
+# see L<https://slubarchiv.slub-dresden.de/technische-standards-fuer-die-ablieferung-von-digitalen-dokumenten>,
+# document "SIP Spezifikation für automatischen Ingest SLUBArchiv (v2.0.1)" for details
+my $sipVersion='v2020.1';
+
 
 our $with_debug = 0;         # output debug infos and files
 # catalogue infos
@@ -78,6 +84,10 @@ my $marc21_to_baginfo_mappings = [
     { tag => "246", code => "b", key => "Title" },
 ];
 
+sub get_sip_version {
+    return $sipVersion;
+}
+
 sub add_metadata($refAddBagInfo, $ppn, $noppn, $marc21) {
     # adding entries to bag-info key list
     push @{$refAddBagInfo}, {'External-Identifier' => "PPN:$ppn"} unless (! $ppn);